Association of rs2910164 in miR-146a with type 2 diabetes mellitus: A case-control and meta-analysis study

Wei-Wei Chang; Li-Ying Wen; Liu Zhang; Xin Tong; Yue-Long Jin; Gui-Mei Chen

doi:10.3389/fendo.2022.961635

Association of rs2910164 in miR-146a with type 2 diabetes mellitus: A case-control and meta-analysis study

Front Endocrinol (Lausanne). 2022 Sep 27:13:961635. doi: 10.3389/fendo.2022.961635. eCollection 2022.

Authors

Wei-Wei Chang¹, Li-Ying Wen¹, Liu Zhang², Xin Tong¹, Yue-Long Jin¹, Gui-Mei Chen³

Affiliations

¹ Department of Epidemiology and Health statistics, School of Public Health, Wannan Medical College, Wuhu, China.
² Department of Hospital Infection Management Office, Wuhu Hospital of Traditional Chinese Medicine, Wuhu, China.
³ School of Health management, Anhui Medical University, Hefei, China.

Abstract

Objective: Several studies have shown that miR-146a rs2910164 (C > G) is associated with type 2 diabetes mellitus (T2DM) susceptibility, but the results are still controversial. This study is divided into two parts, and one is to explore the relationship between miR-146a rs2910164 polymorphism and the genetic susceptibility of T2DM in Chinese Han population. Second, a meta-analysis on the basis of a larger sample size was used to determine whether this is a susceptibility gene for T2DM.

Methods: A case-control study including 574 T2DM patients and 596 controls was used to evaluate the association of miR-146a rs2910164 polymorphism with the risk of T2DM in Chinese Han People. Then, we systematically searched studies investigating the correlation between miR-146a rs2910164 polymorphism and T2DM susceptibility published before April 2022 from PubMed, Web of Science, Wanfang, and China National Knowledge Infrastructure database, and a meta-analysis including six studies was carried out. The results were expressed by odds ratio (OR) and its 95% confidence interval (95% CI).

Results: In a case-control study, we found that there were no statistical differences in genotype frequencies between T2DM and control group. Subgroup analysis showed that, compared with the CC genotype, CG + GG genotype was associated with a decreased risk of T2DM in the subgroup of individuals ≥ 65 years old (OR = 0.75; 95% CI: 0.58-0.98; P _adjusted = 0.032) and BMI < 18.5 (OR = 0.16; 95% CI: 0.03-0.89; P _adjusted = 0.037). In overall meta-analysis, significant heterogeneity was detected. No significant association between miR-146a rs2910164 polymorphism and T2DM was observed in all genetic models under random effects models. Subgroup analysis revealed that there was a significant difference in genotype frequencies between the T2DM and control group in recessive model (CC vs. CG + GG: OR = 1.79; 95% CI: 1.08-2.96; P_Q = 0.307, I ² = 4.0%) and homozygote model (CC vs. GG: OR = 1.79; 95% CI: 1.07-3.00; P_Q = 0.216, I ² = 34.7%) in Caucasians.

Conclusion: The results of our study demonstrate that the miR-146a rs2910164 polymorphism might have ethnicity-dependent effects in T2DM and may be related to T2DM susceptibility in Caucasians.

Keywords: case-control; meta-analysis; mir-146a; polymorphism; type 2 diabetes mellitus.

Publication types

Meta-Analysis

MeSH terms

Aged
Case-Control Studies
Diabetes Mellitus, Type 2* / genetics
Genetic Predisposition to Disease
Humans
MicroRNAs* / genetics
Polymorphism, Single Nucleotide

Substances

MIRN146 microRNA, human
MicroRNAs